Only 10 viral particles cause H5N1 avian flu infection in cows

Just 10 viral particles of the H5N1 bird flu that caused hundreds of influenza outbreaks in U.S. dairy cattle can cause infection in cows, a new study shows. The research also hints at why the outbreaks have confounded scientists, ...

Dogs and humans are more alike than we thought, study finds

The same biological signals that help predict lifespan in humans also appear in dogs, according to new research from the Dog Aging Project—a finding that could help scientists better understand aging in both species.

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